This example is ByteScout Cloud PDF Make Searchable PHP Sample Code that demonstrates how to make a PDF searchable from asynchronously, and make a PDF searchable from an uploaded file. The ByteScout SDK helps to create 1D and 2D barcodes, inserts barcodes to any PDF documents and creates batch barcodes. The ByteScout Cloud Web API allows developers to make conversions using HTML to PDF, PDF to CSV, PDF to TXT, PDF to JSON and more. The API splits and merge PDFs, reads and generates barcodes, reads Excel files and spreadsheets, and converts to JSON. ByteScout, Inc. provides specialized components for software developers and various Windows utilities based on these components.